president obama is said to be considering a plan to ship weapons to rebel groups fighting the syrian army. the president has ordered his national security team to identify what the u.s. can do to help topple syrian dictator bashir al assad. >> we've got do everything we can to protect the syrian people. >> the president said he likely used chemical weapons against his own people, but he said more evidence is needed. >> i've got to be sure i have got the facts. that's what americans expect. >> the president said he likely used chemical weapons against hiss own people, but more evidence is needed. he called the use of chemical weapon games-changer. >> that means there are some options we might not otherwise exercise that we would -- that we would strongly consider. >> but president obama stopped short of repeating that syria's use of chemical weapons is a redline that it cannot cross. many here on capitol hill are becoming frustrated with the lack of action. >> the president has laid down the line. you know, it can't be a dotted line. it can't be anything other than a redline. >> cbs n